<template>
  <div class="article-edit">
    <h1>{{ id ? "编辑" : "新建" }}文章</h1>
    <el-form label-width="100px" @submit.native.prevent="save">
      <el-form-item label="所属分类">
        <el-select v-model="model.categories" multiple>
          <el-option
            v-for="item in categories"
            :key="item._id"
            :label="item.name"
            :value="item._id"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="文章标题">
        <el-input v-model="model.title"></el-input>
      </el-form-item>
      <el-form-item label="文章详情">
        <vue-editor
          v-model="model.body"
          useCustomImageHandler
          @imageAdded="handleImageAdded"
        ></vue-editor>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" native-type="sumbit">
          保存
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { VueEditor } from "vue2-editor";
export default {
  props: {
    id: {},
  },
  components: {
    VueEditor,
  },
  data() {
    return {
      model: {},
      categories: [],
    };
  },
  mounted() {
    this.fetchCategories();
    this.id && this.fetch();
  },
  methods: {
    save() {
      let http;
      if (this.id) {
        http = this.$http.put(`rest/articles/${this.id}`, this.model);
      } else {
        http = this.$http.post("rest/articles", this.model);
      }
      http.then(() => {
        this.$router.push("/articles/list");
        this.$message({
          type: "success",
          message: "保存成功",
        });
      });
    },
    fetch() {
      this.$http.get(`rest/articles/${this.id}`).then((res) => {
        this.model = res.data;
      });
    },
    fetchCategories() {
      this.$http.get(`rest/categories`).then((res) => {
        this.categories = res.data;
      });
    },
    //富文本编辑保存图片函数
    handleImageAdded(file, Editor, cursorLocation, resetUploader) {
      const formData = new FormData();
      formData.append("file", file);

      this.$http.post("upload", formData).then((res) => {
        Editor.insertEmbed(cursorLocation, "image", res.data.url);
        resetUploader();
      });
    },
  },
};
</script>
